SOLUTION: A set of exam scores is normally distributed with a mean = 76 and standard deviation = 7. Use the Empirical Rule to complete the statements below. 95% of the data values lie be

Question 1166483: A set of exam scores is normally distributed with a mean = 76 and standard deviation = 7.
Use the Empirical Rule to complete the statements below.
95% of the data values lie between 62 and 90

% of the exam scores are less than or equal to 76.
% of the exam scores are less than or equal to 69.
% of the exam scores are less than or equal to 90.
% of the exam scores are less than or equal to 83.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
half the scores are les than the mean,'
68% of the scores are between -1 and +1 sd, so 16% on each side are outside that value. It would be 16% score fewer than a 69.
0.025 score greater than or equal to 90 so 0.975 or 97.5%score less than 90.
and 0.84 or 84% score less than 83.
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